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A blended winglet is attached to the wing with a smooth curve instead of a sharp angle and is intended to reduce interference drag at the wing/winglet junction. A sharp interior angle in this region can interact with the boundary layer flow causing a drag inducing vortex, negating some of the benefit of the winglet.
APB expects Scimitar Winglet Systems installed on a 737-800 to save the typical airline more than 45,000 gallons of jet fuel per aircraft per year resulting in a corresponding reduction of carbon dioxide emissions of 476 tons per aircraft per year. The fuel savings can enable a 737-800 to increase its payload up to 2,500 pounds or increase its ...
[87] [88] Continental Airlines was the first carrier to order winglets for the 757-200, and in February 2009 became the first operator of 757-300s with winglets. [89] Aviation Partners further developed the blended winglet into the Scimitar Blended Winglet, which improves fuel burn by 1.1% over the original blended winglet. [90]
The Spiroid winglet is a closed wing surface attached to the tip of a conventional wing. Wingtip vortices form a major component of wake turbulence and are associated with induced drag, which is a significant contributor to total drag in most regimes. A closed wing avoids the need for wingtips and thus might be expected to reduce wingtip drag ...
Split Scimitar winglets became available in 2014 for the 737-800, 737-900ER, BBJ2 and BBJ3, and in 2015 for the 737-700, 737-900 and BBJ1. [138] Split Scimitar winglets were developed by Aviation Partners , the same Seattle-based corporation that developed the blended winglets; the Split Scimitar winglets produce up to a 5.5% fuel savings per ...
The ultimate source of these terms is corruptions of the Persian shamshir. [8] [9] Scimitar became used to describe all curved oriental blades, in contrast to the straight and double-edged European swords of the time. [note 1] The term سَيْف saif in Arabic can refer to any Middle Eastern (or North African, South Asian) sword, straight or ...
The Scimitar was used by the three formation reconnaissance regiments of the British Army. After the Strategic Defence and Security Review in 2010, some regiments' Challenger 2 tanks were replaced with CVR(T) Scimitars. [22] The Scimitar was retired from active service in April 2023. [2] Belgium – 153 units, [23] withdrawn from active service ...
Scimitar antenna, a type of aerospace radio antenna; Scimitar propeller, a type of aircraft propeller; Reliant Scimitar, a sports car; Masak Scimitar, a glider designed and built by Peter Masak; Reaction Engines Scimitar, an aircraft engine; Scimitar (game engine), a video game engine; Split scimitar winglets, a type of wingtip device